Home / 85,830.64-118,434.96-47,588.31

Finding the Fourth Proportional to 85,830.64, 118,434.96 and 47,588.31

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Solution

The fourth proportional to 85,830.64, 118,434.96 and 47,588.31 is: 65,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,830.64 : 118,434.96 = 47,588.31 : x
  2. Step 2: Convert to fraction form
    85,830.64/118,434.96 = 47,588.31/x
  3. Step 3: Cross multiply
    85,830.64x = 118,434.96 × 47,588.31
  4. Step 4: Simplify right side
    85,830.64x = 5,636,119,591.32
  5. Step 5: Solve for x
    x = 5,636,119,591.32/85,830.64
  6. Step 6: Final answer
    x = 65,665.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.